Deok-hyeon Jo

Tae-su, a detective fighting organized crime, returns to his hometown for his high school friend Wang-jae's funeral. At the funeral, he meets his old friends Pil-ho, Dong-hwan and Seok-hwan and they reminisce. Suspecting something fishy about Wang-jae's death, Tae-su and Seok-hwan start investigating it each in his own way. Both of their investigations lead to a land development project that Pil-ho is directing and the two embark on a difficult battle. (imdb)

Little Seung-jae stays up all night and writes letters to So-hee, pretending to be her father in Mars. Leaving Seung-jae's innocent heart behind, So-hee leaves for a big city. Both grown up to be adults, Seung-jae is a postman who writes letters to So-hee's grandma - the letters that never came from So-hee. So-hee's heart hardens after hardships in life and she comes back to her hometown and Seung-jae's heart swells up again at seeing her again... (hanbooks.com)

Chan Soo is a detective with a daughter whom he loves dearly. One day, she disappears and one of his closest friends Joon Shik is arrested as a suspect. Will Chan Soo stay still?